Oof. I have been there. Sort of. Minus the rest of Bubbles' past.
Bubbles hates that she acted the way she did. This suggests she actually liked Faye's friends more than she was willing to admit.
This is painful, but hopeful for the future...
I take it that she's scolding herself for thinking that it might have gone any other way - for having
hope that it might. That she might actually enjoy a social situation.
What a stupid thing to think, right?
EDIT: Also, for what it's worth, I identify/classify myself very much as an introvert. Always have.
Crucially, however, I realized in my twenties that I'd been trying to pretend that was
all that I was, because trying to be social meant making myself vulnerable to others - something I had little experience, skill, or confidence with, and went about it badly. Which meant that, in my clumsy attempts, I experienced a lot of rejection. And that hurt, so I'd slink back to my room and try to tell myself I didn't need or want any of that, and those grapes were sour anyway.
This was a
profoundly unhealthy cycle, and I wasn't able to break it until I became aware of it and accepted that I do want and need human contact, even if that exposes me to risk.
I'm still an introvert, I still tend to prefer quiet and solitude over big noisy crowds... but I'm more in tune with the emotional needs that I do have, for socializing on my terms and in my preferred modes, rather than denying them until they boil over and express themselves in uncontrolled and ultimately unsatisfying ways (as they did, and would continue to do unless acknowledged).